package com.xu.threadLocal;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

/**
 *
 * @author xudenghui
 * @create 2023-03-08 11:13
 **/
public class ParseDate implements Runnable{
    private static final ThreadLocal<SimpleDateFormat> t1 = new ThreadLocal<SimpleDateFormat>();
    int i = 0;

    public ParseDate(int i) {
        this.i = i;
    }

    @Override
    public void run() {
        try {
            if (t1.get() == null){
                t1.set(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"));
            }
            Date t = t1.get().parse("2023-03-08 19:29:"+i%60);
            System.out.println(i+":"+t);
        } catch (ParseException e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args) {
        ExecutorService service = Executors.newFixedThreadPool(10);
        for (int i = 0; i < 1000; i++) {
            service.execute(new ParseDate(i));
        }
    }
}
